NO20032352L - Signal processing on the receiving side of a communication network - Google Patents

Signal processing on the receiving side of a communication network

Info

Publication number
NO20032352L
NO20032352L NO20032352A NO20032352A NO20032352L NO 20032352 L NO20032352 L NO 20032352L NO 20032352 A NO20032352 A NO 20032352A NO 20032352 A NO20032352 A NO 20032352A NO 20032352 L NO20032352 L NO 20032352L
Authority
NO
Norway
Prior art keywords
buffer
segments
digitized samples
data processor
processed
Prior art date
Application number
NO20032352A
Other languages
Norwegian (no)
Other versions
NO20032352D0 (en
Inventor
Kenneth D Easton
Peter J Black
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of NO20032352D0 publication Critical patent/NO20032352D0/en
Publication of NO20032352L publication Critical patent/NO20032352L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • H04B2001/70935—Matched filter type using a bank of matched fileters, e.g. Fast Hadamard Transform

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Communication Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

A receiver unit includes a first buffer that receives and stores digitized samples at a particular sample rate and a data processor that retrieves segments of digitized samples from the first buffer and processes the retrieved segments with a particular set of parameters values. The data processor is operated based on a processing clock having a frequency that is (e.g., then or more times) higher than the sample rate. Multiple instances of the received signal can be processed by retrieving and processing multiple segments of digitized samples from the first buffer, the receiver unit typically further includes a receiver that receives and processes a transmitted signal to provide the digitized samples and a controller that dispatches tasks for the data processor. The data processor can be designed to include a correlator, a symbol demodulation and combiner, a first accumulator, and a second buffer, or a combination thereof. The correlator despreads the retrieved segments of digitized samples with corresponding segments of PN despreading sequences to provide correlated samples, which are further processed by the symbol demodulation and combiner to provide processed symbols. The second buffer stores the processed symbols, and can be designed to provide de-interleaving of the processed symbols.
NO20032352A 2000-11-27 2003-05-26 Signal processing on the receiving side of a communication network NO20032352L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/723,795 US6985516B1 (en) 2000-11-27 2000-11-27 Method and apparatus for processing a received signal in a communications system
PCT/US2001/043619 WO2002045288A2 (en) 2000-11-27 2001-11-20 Method and apparatus for processing a received signal in a communications system

Publications (2)

Publication Number Publication Date
NO20032352D0 NO20032352D0 (en) 2003-05-26
NO20032352L true NO20032352L (en) 2003-07-23

Family

ID=24907718

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20032352A NO20032352L (en) 2000-11-27 2003-05-26 Signal processing on the receiving side of a communication network

Country Status (18)

Country Link
US (1) US6985516B1 (en)
EP (4) EP2285008A3 (en)
JP (1) JP4119247B2 (en)
KR (1) KR100938022B1 (en)
CN (1) CN1264283C (en)
AT (1) ATE410833T1 (en)
AU (1) AU2002236459A1 (en)
BR (1) BR0115638A (en)
CA (1) CA2430128A1 (en)
DE (1) DE60136092D1 (en)
HK (1) HK1063541A1 (en)
IL (2) IL155850A0 (en)
MX (1) MXPA03004636A (en)
NO (1) NO20032352L (en)
RU (2) RU2301493C2 (en)
TW (1) TW595149B (en)
UA (1) UA74397C2 (en)
WO (1) WO2002045288A2 (en)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0028392D0 (en) * 2000-11-22 2001-01-03 Koninkl Philips Electronics Nv A rake receiver
US8611311B2 (en) 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7200103B2 (en) * 2001-06-21 2007-04-03 Bae Systems Information And Electronic Systems Integration Inc. Reduced algorithm receiver
US7839762B2 (en) * 2001-12-21 2010-11-23 Texas Instruments Incorporated Method and apparatus for vector based walsh code bit sequence generation
US6771693B2 (en) * 2001-12-27 2004-08-03 Interdigital Technology Corporation Enhanced rake structure
US7649860B2 (en) * 2002-01-31 2010-01-19 Qualcomm Incorporated Buffer-based GPS and CDMA pilot searcher
JP2005531202A (en) 2002-06-21 2005-10-13 ワイデファイ インコーポレイテッド Wireless local area network repeater
US7406102B2 (en) 2002-07-03 2008-07-29 Freescale Semiconductor, Inc. Multi-mode method and apparatus for performing digital modulation and demodulation
TWI321918B (en) 2002-08-07 2010-03-11 Interdigital Tech Corp Channel switching for support of multlmedia broadcast and multicast services
DE60334547D1 (en) * 2002-08-21 2010-11-25 Nxp Bv Delay line for receiving multiple propagation paths
DE10241691A1 (en) * 2002-09-09 2004-03-25 Infineon Technologies Ag Correlation device for mobile radio system correlates generated correlation word with dataword obtained from stored sequence of sample values of received signal
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
TWI320274B (en) * 2002-09-27 2010-02-01 Method and apparatus for digital audio broadcasting
US8885688B2 (en) * 2002-10-01 2014-11-11 Qualcomm Incorporated Control message management in physical layer repeater
AU2003274992A1 (en) 2002-10-11 2004-05-04 Widefi, Inc. Reducing loop effects in a wireless local area network repeater
CN100574147C (en) * 2002-10-15 2009-12-23 高通股份有限公司 The WLAN (wireless local area network) transponder that is used for expanding coverage area of network with automatic gain control
US8078100B2 (en) 2002-10-15 2011-12-13 Qualcomm Incorporated Physical layer repeater with discrete time filter for all-digital detection and delay generation
AU2003279816A1 (en) * 2002-10-24 2004-05-13 Widefi, Inc. Wireless local area network repeater with in-band control channel
US7230935B2 (en) * 2002-10-24 2007-06-12 Widefi, Inc. Physical layer repeater with selective use of higher layer functions based on network operating conditions
KR20050086572A (en) * 2002-11-15 2005-08-30 위데피, 인코포레이티드 Wireless local area network repeater with detection
JP2006510326A (en) * 2002-12-16 2006-03-23 ワイデファイ インコーポレイテッド Improved wireless network repeater
DE10327063A1 (en) * 2003-06-13 2005-01-13 Universität Duisburg-Essen Rake-receiver rake-finger for processing part of received CDMA-RF signal, includes CDMA-signal decoding device for CDMA-decoding of received part of CDMA-RF signal
US20050169353A1 (en) * 2004-02-02 2005-08-04 Wei An Post despreading interpolation in CDMA systems
US8027642B2 (en) 2004-04-06 2011-09-27 Qualcomm Incorporated Transmission canceller for wireless local area network
US7359429B2 (en) * 2004-04-19 2008-04-15 Nokia Corporation Support of the determination of a correlation
EP1745567B1 (en) 2004-05-13 2017-06-14 QUALCOMM Incorporated Non-frequency translating repeater with detection and media access control
JP2008505513A (en) * 2004-06-03 2008-02-21 ワイデファイ インコーポレイテッド Frequency conversion repeater with low cost, high performance local oscillator structure
US8254921B2 (en) 2004-08-12 2012-08-28 Qualcomm Incorporated Default configurations with differential encoding in a wireless communication system
WO2006081405A2 (en) * 2005-01-28 2006-08-03 Widefi, Inc. Physical layer repeater configuration for increasing mino performance
US9071344B2 (en) 2005-08-22 2015-06-30 Qualcomm Incorporated Reverse link interference cancellation
US8611305B2 (en) 2005-08-22 2013-12-17 Qualcomm Incorporated Interference cancellation for wireless communications
US8472877B2 (en) 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
CN101056342B (en) 2006-04-13 2011-04-20 华为技术有限公司 A method and device for communication in the digital user line technology
JP4843088B2 (en) * 2006-09-01 2011-12-21 クゥアルコム・インコーポレイテッド Repeater with dual receiver antenna configuration or dual transmitter antenna configuration adapted for improved isolation
EP2064903A4 (en) * 2006-09-21 2011-12-14 Qualcomm Inc Method and apparatus for mitigating oscillation between repeaters
US20080080444A1 (en) * 2006-09-28 2008-04-03 Analog Devices, Inc. Transport channel buffer organization in downlink receiver bit rate processor
EP2082496A4 (en) 2006-10-26 2013-05-22 Qualcomm Inc Repeater techniques for multiple input multiple output utilizing beam formers
FI20075282A0 (en) * 2007-04-23 2007-04-23 Nokia Corp Frequency error estimation algorithm
US8170087B2 (en) * 2007-05-10 2012-05-01 Texas Instruments Incorporated Correlation coprocessor
WO2008157679A1 (en) * 2007-06-19 2008-12-24 Raytheon Company Methods and apparatus for receiver having fast walsh transform
US8018906B2 (en) * 2007-09-25 2011-09-13 Terrace Communications Corporation Symbol interleave for wireless communications
US8848913B2 (en) 2007-10-04 2014-09-30 Qualcomm Incorporated Scrambling sequence generation in a communication system
EP2056515B1 (en) * 2007-10-30 2019-06-12 Cellular Communications Equipment Llc Methods, apparatuses, system and related computer program product for resource allocation
US8787181B2 (en) 2008-01-14 2014-07-22 Qualcomm Incorporated Resource allocation randomization
US7933256B2 (en) * 2008-02-27 2011-04-26 Qualcomm Incorporated Coherent single antenna interference cancellation for GSM/GPRS/EDGE
US8923249B2 (en) 2008-03-26 2014-12-30 Qualcomm Incorporated Method and apparatus for scrambling sequence generation in a communication system
US20100046660A1 (en) * 2008-05-13 2010-02-25 Qualcomm Incorporated Interference cancellation under non-stationary conditions
US8064552B2 (en) * 2008-06-02 2011-11-22 Harris Corporation Adaptive correlation
US8537745B2 (en) * 2008-06-02 2013-09-17 Qualcomm Incorporated Multiplexing arrangements for multiple receive antennas
US9408165B2 (en) * 2008-06-09 2016-08-02 Qualcomm Incorporated Increasing capacity in wireless communications
US9237515B2 (en) * 2008-08-01 2016-01-12 Qualcomm Incorporated Successive detection and cancellation for cell pilot detection
US9277487B2 (en) * 2008-08-01 2016-03-01 Qualcomm Incorporated Cell detection with interference cancellation
US8509293B2 (en) 2008-08-19 2013-08-13 Qualcomm Incorporated Semi-coherent timing propagation for GERAN multislot configurations
US8503591B2 (en) 2008-08-19 2013-08-06 Qualcomm Incorporated Enhanced geran receiver using channel input beamforming
US20100097955A1 (en) * 2008-10-16 2010-04-22 Qualcomm Incorporated Rate determination
US9160577B2 (en) 2009-04-30 2015-10-13 Qualcomm Incorporated Hybrid SAIC receiver
US8787509B2 (en) * 2009-06-04 2014-07-22 Qualcomm Incorporated Iterative interference cancellation receiver
US8355338B2 (en) * 2009-07-14 2013-01-15 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Method of processing sequential information in packets streamed over a network
US8619928B2 (en) * 2009-09-03 2013-12-31 Qualcomm Incorporated Multi-stage interference suppression
US8831149B2 (en) * 2009-09-03 2014-09-09 Qualcomm Incorporated Symbol estimation methods and apparatuses
EP2505017B1 (en) 2009-11-27 2018-10-31 Qualcomm Incorporated Increasing capacity in wireless communications
KR101376676B1 (en) 2009-11-27 2014-03-20 퀄컴 인코포레이티드 Increasing capacity in wireless communications
US8509155B2 (en) * 2010-07-16 2013-08-13 Samsung Electronics Co., Ltd. Method and system for multiplexing acknowledgement signals and sounding reference signals
US20150063217A1 (en) * 2013-08-28 2015-03-05 Lsi Corporation Mapping between variable width samples and a frame
RU2540840C1 (en) * 2014-01-09 2015-02-10 федеральное автономное учреждение "Государственный научно-исследовательский испытательный институт проблем технической защиты информации Федеральной службы по техническому и экспортному контролю" Apparatus for detecting periodic sequence pulse carrier frequency modulation
RU2540839C1 (en) * 2014-01-09 2015-02-10 федеральное автономное учреждение "Государственный научно-исследовательский испытательный институт проблем технической защиты информации Федеральной службы по техническому и экспортному контролю" Periodic sequence pulse carrier frequency modulation detection method
US9276778B2 (en) * 2014-01-31 2016-03-01 Qualcomm Incorporated Instruction and method for fused rake-finger operation on a vector processor
US9940169B2 (en) * 2015-07-23 2018-04-10 Pearson Education, Inc. Real-time partitioned processing streaming
US10404319B1 (en) * 2018-07-09 2019-09-03 Cisco Technology, Inc. Fast correlation of prometheus orthonormal sets (PONS) for communications
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
CN113169764A (en) 2018-11-27 2021-07-23 艾斯康实验室公司 Non-coherent cooperative multiple-input multiple-output communication
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11411778B2 (en) 2019-07-12 2022-08-09 XCOM Labs, Inc. Time-division duplex multiple input multiple output calibration
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation
WO2024005788A1 (en) * 2022-06-28 2024-01-04 Altiostar Networks, Inc. Beam processing architecture in wireless communication systems

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4894842A (en) * 1987-10-15 1990-01-16 The Charles Stark Draper Laboratory, Inc. Precorrelation digital spread spectrum receiver
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
ZA938324B (en) 1992-11-24 1994-06-07 Qualcomm Inc Pilot carrier dot product circuit
ZA947317B (en) * 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications
US5490165A (en) 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
US5561618A (en) 1993-12-22 1996-10-01 Qualcomm Incorporated Method and apparatus for performing a fast Hadamard transform
US5530716A (en) 1994-06-30 1996-06-25 Motorola, Inc. Method and apparatus for identifying a coded communication signal
CN1103147C (en) 1994-07-29 2003-03-12 夸尔柯姆股份有限公司 Method and apparatus for performing code acquisition in CDMA communications system
US5710768A (en) 1994-09-30 1998-01-20 Qualcomm Incorporated Method of searching for a bursty signal
US5577022A (en) 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
US5654979A (en) 1995-01-13 1997-08-05 Qualcomm Incorporated Cell site demodulation architecture for a spread spectrum multiple access communication systems
GB2301747A (en) * 1995-06-02 1996-12-11 Dsc Communications Remotely programmable subscriber terminal in a wireless telecommunications system
US5764687A (en) 1995-06-20 1998-06-09 Qualcomm Incorporated Mobile demodulator architecture for a spread spectrum multiple access communication system
US5805648A (en) 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
JP2751959B2 (en) * 1996-07-15 1998-05-18 日本電気株式会社 Reception timing detection circuit of CDMA receiver
FR2754286B1 (en) 1996-10-08 1998-12-31 Monopanel Sa FACADE ELEMENT WITH DECORATIVE SIDING
US5903550A (en) 1997-01-02 1999-05-11 Motorola, Inc. Method and system for parallel demodulation of multiple chips of a CDMA signal
US6574211B2 (en) 1997-11-03 2003-06-03 Qualcomm Incorporated Method and apparatus for high rate packet data transmission
JP3680592B2 (en) * 1998-10-30 2005-08-10 株式会社日立製作所 Communication device
US6618431B1 (en) * 1998-12-31 2003-09-09 Texas Instruments Incorporated Processor-based method for the acquisition and despreading of spread-spectrum/CDMA signals
US6363108B1 (en) 1999-03-31 2002-03-26 Qualcomm Inc. Programmable matched filter searcher
US6442154B1 (en) * 1999-04-15 2002-08-27 Ericsson Inc. Method and apparatus for successive cancellation using multiple signal timings
US7085246B1 (en) * 1999-05-19 2006-08-01 Motorola, Inc. Method and apparatus for acquisition of a spread-spectrum signal
US6459883B2 (en) * 2000-07-31 2002-10-01 Morphics Technology, Inc. Generic finger architecture for spread spectrum applications

Also Published As

Publication number Publication date
EP2073395A3 (en) 2011-05-11
IL155850A0 (en) 2003-12-23
MXPA03004636A (en) 2004-04-20
CA2430128A1 (en) 2002-06-06
EP2285008A2 (en) 2011-02-16
WO2002045288A2 (en) 2002-06-06
NO20032352D0 (en) 2003-05-26
EP2278726A3 (en) 2013-03-13
CN1264283C (en) 2006-07-12
JP4119247B2 (en) 2008-07-16
EP1338097A2 (en) 2003-08-27
KR100938022B1 (en) 2010-01-21
WO2002045288A3 (en) 2003-01-30
RU2007108199A (en) 2008-09-10
JP2004527930A (en) 2004-09-09
IL155850A (en) 2010-06-16
KR20030048481A (en) 2003-06-19
EP2278726A2 (en) 2011-01-26
EP2285008A3 (en) 2013-03-13
UA74397C2 (en) 2005-12-15
DE60136092D1 (en) 2008-11-20
EP2073395A2 (en) 2009-06-24
AU2002236459A1 (en) 2002-06-11
HK1063541A1 (en) 2004-12-31
RU2425442C2 (en) 2011-07-27
TW595149B (en) 2004-06-21
US6985516B1 (en) 2006-01-10
EP1338097B1 (en) 2008-10-08
ATE410833T1 (en) 2008-10-15
BR0115638A (en) 2004-01-27
RU2301493C2 (en) 2007-06-20
CN1481621A (en) 2004-03-10

Similar Documents

Publication Publication Date Title
NO20032352L (en) Signal processing on the receiving side of a communication network
HK1055180A1 (en) Method and apparatus for demodulating signals processed in a transmit diversity mode
JP2010509797A (en) Receiver for modulated optical signal and method for receiving modulated optical signal
WO2002015502A3 (en) Adaptive linear equalisation for walsh-modulated
KR960705415A (en) A method and apparatus for identifying a coded communication signal
ATE395753T1 (en) SCALING USING GAIN FACTORS FOR USE IN DATA DETECTION FOR WIRELESS CODE DIVISION MULTIPLE ACCESS COMMUNICATION SYSTEMS
IL170144A (en) Communication receiver with a rake-based adaptive equalizer
DE60208571D1 (en) TRANSMISSION PROCESS, DEVICE AND COMPUTER PROGRAM PRODUCTS FOR CHANNEL CHARACTERIZATION
TW200501572A (en) Communication receiver with an adaptive equalizer length
EP0935204A3 (en) Programmable correlator coprocessor
ATE311697T1 (en) REDUCTION OF EFFORTS OF A DISRUPTION SUPPRESSION METHOD
EP1313230A3 (en) Low-power code division multiple access receiver
US11327585B1 (en) Adaptive stylus receiver to adaptively determine presence of narrowband interference and its suppression
DE60123940D1 (en) Multi-user detection in a MC-CDMA messaging system
ATE262752T1 (en) METHOD AND DEVICE FOR MULTI-USER DETECTION IN DS-CDMA MODE
ATE326084T1 (en) MULTIPLE PARTICIPANT DETECTION USING RAKE RECEIVER STRUCTURE
KR100828530B1 (en) Multiuser detection of differing data rate signals
KR100277039B1 (en) Apparatus and method for estimating channel state of channel receiver in code division multiple access communication system
EP1117189A3 (en) Method and apparatus for despreading CDMA signals
US20070297493A1 (en) Efficient Maximal Ratio Combiner for Cdma Systems
ATE244968T1 (en) SELECTION OF THE AUTOCORRELATION FUNCTION OF THE INTERFERENCE COMPONENTS IN THE RECEIVED MESSAGE SIGNAL
EP1469611A3 (en) Rake reception method and apparatus
FR2813727B1 (en) METHOD AND DEVICE FOR ORDERING SIGNALS FROM MULTI-USERS
JP2001237739A (en) Path selection system and path selection circuit for cdm demodulation circuit
TH42522A3 (en) Methods and equipment for a fully duplex-capable radio transmission system with CDMA access.